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import numpy as np
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
from PyQt5.QtCore import *
from ui import GUI, Pens # the fuck
class ExpandingSpacer(QSpacerItem):
def __init__(self):
super().__init__(0, 0, QSizePolicy.Minimum, \
QSizePolicy.Expanding)
class MeinLabel(QLabel):
def __init__(self, *args):
QLabel.__init__(self, *args)
self.setFont(GUI.monospace)
class MeinGroßLabel(QLabel):
def __init__(self, *args):
QLabel.__init__(self, *args)
self.setFont(GUI.bigfont)
self.setAlignment(Qt.AlignHCenter)
class EllipseWidget(QWidget):
def __init__(self, pol):
QWidget.__init__(self)
self.pol = pol
self.state = None
self.ellipse = None
self.is_used = True
def minimumSizeHint(self):
return QSize(150, 150)
def paintEvent(self, event):
P = QPainter(self)
w, h = self.frameSize().width(), self.frameSize().height()
cx, cy = w / 2, h / 2
r = min(w, h) / 2
# background
if self.is_used:
background = Qt.white
else:
background = QColor(0, 0, 0, 100)
P.fillRect(QRect(0, 0, w, h), background)
# coordinate axes
P.setPen(Pens.axes)
P.drawLine(cx - 20 * r, cy, cx + 20 * r, cy)
P.drawLine(cx, cy - 20 * r, cx, cy + 20 * r)
# polarizer axes
P.translate(cx, cy)
P.rotate(- (self.pol.angle + self.pol.delta) * 180 / np.pi)
if self.pol.type == "linear":
P.setPen(Pens.axis_linear)
P.drawLine(-20 * r, 0, 20 * r, 0)
else:
P.setPen(Pens.axis_fast)
P.drawLine(-20 * r, 0, 20 * r, 0)
P.drawText(0.92 * r, 0, "F")
P.setPen(Pens.axis_slow)
P.drawLine(0, -20 * r, 0, 20 * r)
P.drawText(0, -0.92 * r, "S")
if self.state is None:
return
P.resetTransform()
r *= 0.88
P.translate(cx, cy)
P.scale(1, -1)
# radii
P.setPen(Pens.radii)
csa = np.array([np.cos(self.ellipse.alpha), np.sin(self.ellipse.alpha)])
xa = self.ellipse.a * r * csa
P.drawLine(-xa[0], -xa[1], xa[0], xa[1])
csb = np.array([np.cos(self.ellipse.alpha + np.pi / 2), \
np.sin(self.ellipse.alpha + np.pi / 2)])
xb = self.ellipse.b * r * csb
P.drawLine(-xb[0], -xb[1], xb[0], xb[1])
def arc(x, y, r, t1, t2):
P.drawArc(x - r / 2, y - r / 2, r, r, \
-180 * 16 / np.pi * t1, \
-180 * 16 / np.pi * t2)
# azimuth
P.setPen(Pens.alpha)
P.drawLine(0, 0, xa[0], xa[1])
arc(0, 0, self.ellipse.a * r, 0, self.ellipse.alpha)
# ellipticity
P.setPen(Pens.theta)
P.drawLine(-xa[0], -xa[1], xb[0], xb[1])
arc(-xa[0], -xa[1], r / 2, self.ellipse.alpha, abs(self.ellipse.theta))
# the ellipse
P.setPen(Pens.ellipse)
path = QPainterPath()
for i, t in enumerate(np.linspace(0, 2 * np.pi, 100)):
x = r * np.real(np.exp(1j * t) * self.state)
f = path.moveTo if t == 0 else path.lineTo # FML
f(x[0], x[1]) # +Y should be upwards
if abs(self.ellipse.theta) > 0.05 and i % 25 == 0:
N = r * np.real(np.exp(1j * (t + 0.001)) * self.state) - x
N /= np.linalg.norm(N)
if np.any(np.isnan(N)):
continue
T = np.dot(np.array([[0, 1], [-1, 0]]), N)
ax = x - N * 5 + T * 5
P.drawLine(x[0], x[1], ax[0], ax[1])
ax = x - N * 5 - T * 5
P.drawLine(x[0], x[1], ax[0], ax[1])
path.closeSubpath()
P.drawPath(path)
if abs(self.ellipse.theta) <= 0.05:
x1 = xa - r / 20 * csb
x2 = xa + r / 20 * csb
P.drawLine(x1[0], x1[1], x2[0], x2[1])
x1 = -xa - r / 20 * csb
x2 = -xa + r / 20 * csb
P.drawLine(x1[0], x1[1], x2[0], x2[1])
class AngleSlider(QHBoxLayout):
def __init__(self, label=None):
super().__init__()
self.angle = 0
if label:
self.addWidget(QLabel(label))
self.slider = QSlider(Qt.Horizontal)
self.slider.setMinimumWidth(100)
self.slider.setMinimum(0)
self.slider.setMaximum(180)
self.slider.setTickPosition(QSlider.TicksBelow)
self.slider.setTickInterval(45)
self.slider.valueChanged.connect(\
lambda: AngleSlider.change(self, "bar"))
self.addWidget(self.slider)
self.edit = QLineEdit()
self.edit.setText("0")
self.edit.setMinimumWidth(30)
self.edit.textChanged.connect(\
lambda: AngleSlider.change(self, "edit"))
self.addWidget(self.edit)
self.addWidget(QLabel("°"))
def setValue(self, angle):
self.angle = angle
self.slider.blockSignals(True)
self.slider.setValue(angle)
self.slider.blockSignals(False)
self.edit.blockSignals(True)
self.edit.setText("%g" % angle)
self.edit.blockSignals(False)
@staticmethod
def change(self, source):
if source == "edit":
try:
angle = float(self.edit.text())
except ValueError:
return
self.slider.blockSignals(True)
self.slider.setValue(angle)
self.slider.blockSignals(False)
elif source == "bar":
angle = self.slider.value()
self.edit.blockSignals(True)
self.edit.setText("%g" % angle)
self.edit.blockSignals(False)
self.angle = angle
self.on_change()
class Widocques(QWidget):
image = None
def __init__(self):
QWidget.__init__(self)
self.setSizePolicy(QSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding))
self.intensity = 1
def minimumSizeHint(self):
return QSize(100, 100)
def paintEvent(self, event):
P = QPainter(self)
w, h = self.frameSize().width(), self.frameSize().height()
ar = Widocques.image.width() \
/ Widocques.image.height()
if w / h > ar:
# pad left/right
w2 = h * ar
pad = (w - w2) / 2
rect = QRect(pad, 0, w2, h)
else:
# pad top/bottom
h2 = w / ar
pad = (h - h2) / 2
rect = QRect(0, pad, w, h2)
w2 = rect.width()
h2 = rect.height()
rect2 = QRect(rect.left() + 0.1 * w2, rect.top() + 0.1 * h2, \
w2 * 0.8, h2 * 0.8)
P.fillRect(QRect(0, 0, w, h), Qt.black)
P.drawImage(rect2, Widocques.image)
P.fillRect(rect2, QColor(0, 0, 0, 255 * (1 - self.intensity)))
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